[Bug-gcal] [gcal_bug] [build] gcal-3.6 does not build

[Otmar Struwe]

Hello,
when I build gcal-3.6 on a cross system with gcc-4.3.3 and uClibc 0.9.32 
i get an error while compiling:


        mipsel-openwrt-linux-uclibc-gcc -DHAVE_CONFIG_H -I. -I..   
-I/home/otmar/workspace/openwrt-xburst/staging_dir/target-mipsel_uClibc-0.9.32/usr/include 
-I/home/otmar/workspace/openwrt-xburst/staging_dir/target-mipsel_uClibc-0.9.32/include 
-I/home/otmar/workspace/openwrt-xburst/staging_dir/toolchain-mipsel_gcc-4.3.3+cs_uClibc-0.9.32/usr/include 
-I/home/otmar/workspace/openwrt-xburst/staging_dir/toolchain-mipsel_gcc-4.3.3+cs_uClibc-0.9.32/include   
-Os -pipe -mips32 -mtune=mips32 -funit-at-a-time -fhonour-copts 
-msoft-float  -MT pipe.o -MD -MP -MF $depbase.Tpo -c -o pipe.o pipe.c &&\
        mv -f $depbase.Tpo $depbase.Po
In file included from pipe.c:47:
./spawn.h:403: error: field '_sp' has incomplete type


The problem is that the system has no "spawn.h" but "sched.h" is avaliable.

Snippet "config.h":


    /* Define to 1 if you have the <sched.h> header file. */
    #define HAVE_SCHED_H 1

    /* Define to 1 if you have the `sched_setparam' function. */
    #define HAVE_SCHED_SETPARAM 1

    /* Define to 1 if you have the <spawn.h> header file. */
    /* #undef HAVE_SPAWN_H */

As far as I see the detected "shed.h" is not included from pipe, neither 
from "spawn.h" used inside gcal.

As a possible solution I changed "spawn.in.h" (See diff output). As far 
as I understand the "sched.h" has to be included by spawn.h in any GNU 
Linux case. For other systems I am unsure.

Kind regard
 Otmar


DIFF:

--- spawn.in.h  2010-03-22 13:31:49.000000000 +0100
+++ tmp/spawn.in.h 2010-10-30 16:57:51.000000000 +0200
@@ -24,6 +24,11 @@
 /* The include_next requires a split double-inclusion guard.  */
 #if @HAVE_SPAWN_H@
 # @INCLUDE_NEXT@ @NEXT_SPAWN_H@
+#else
+/* At least the sched.h and the signal.h are required
+   from gcal or glibc  */
+#include <sched.h>
+#include <signal.h>
 #endif

 #ifndef _GL_SPAWN_H